Eyeglasses.



R. C. KINGSLEY.

BYEGLASSES. APPLIoATIoN FILED MAR. so, 1912.

v Patenceawmh 25,1913.

UNITED PATENT OFFICE.

RAY C. KING-SLEY, OF SALT LAKE CITY, UTAH, ASSIGNOR OF ONE-HALF TO COLUMBIAN OPTICAL COMPANY, OF SALT LAKE CITY, UTAH, A CORPORATION OF COLORADO.

EYEGLASSES.

Specification of Letters Patent.

Application filed March 30, 1912.

Patented Feb. 25,1913.

Serial No. 687,360.

To all whom t may concern Be it known that I, RAY C. KiNGsLnY, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented new and useful Improvements in Eyeglasses, of which the following is a specification.

My invention relates to the constrlu-,tion

of eyeglasses, and has for its principal object the narrowing of the pupilary distance in pivoted guard eyeglasses, at the same time allowing easy action and wide opening of the ouard.

A further object is to provide an improved attachmentof the guard to the bridge, by means of which the total distance between the lenses is reduced and a strong, compact and etlicient mounting produced.

These and other objects will more fully hereinafter appear from the detailed description of the invention.

In carrying my invention into eifect, l. form for the guard a substantially cylindrical mounting which is set slightly out of alinement of the glasses toward the rear or on face side thereof, and set into the strap or frame which holds the lens. This cylindrical structure preferably includes an upper fixed lug setting close against or set into the strap; a second fixed lug forming part of the bridge and spaced apart from and below the first lug; the guard arm per forated to lie between and in alinement with said lugs; a pivot pin passing through said lugs and arm and having a threaded connection with one of said lugs; and a spring mounted on the extended lower end of the pivot pin for holding the guard arm in the required position.

The invention consists in the improve ments above indicated, and in the construction more particularly set forth in the following description taken in connection with the accompanying drawings which illustrate what I now believe to be the best embodiment thereof.

In these drawings-Figure l is a front view of a pair of eyeglasses embodying the invention; Fig. 2 is an inner longitudinal view of one guard and mounting on a larger scale, the lens being omitted; Fig. 3 is a vertical section of the attachment joint on the Same scale and showing the pivot pin; and Fig. 4 is a plan view on the same scale of the joint shown in Fig. 2, the guard being omitted.

Referring to thel drawings, it will be seen that the construction on each side is the same, so that a description of one side will suffice for both.

.t represents the frame portion for the attachment of a lens, this portion being represented in the riluless glasses illustrated as a strap. The invention of course applies to rim glasses and any other form for which it is suitable. The substantial cylindrical attachment for the guard or nose grip includes lugs a and o, which are secured to or integral with the frame A, and are preferably disjilaced from alinemcnt with the lenses, on the rear or inward side thereof, as shown. Lug a is cylindrical in shape and lies close to and is set' into strap A and is provided with a perforation in alinement with the perforation in lug The lugs may be set into the strap by forming a groove or channel in the .latter to receive the former. One of these lugs is screw-threaded, preferably as shown at o, and this lug also is cylindrical and constitutes the base or inner end of the bridge C of the eyeglasses.

7; represents the guard arm of guard or nose grip b3, which may be of any wellknown or preferred construction. Guard arm o2 is provided with a perforated cylindrical enlargement b", this perforation being smooth Vso as to work on pivot pin D, The lugs a, and enlargement b4 heilig in alinement, constitute a complete cylindrical mounting, as stated. Pivot pin D has a threaded portion to engage whichever lug a or L which is threaded for the purpose, in the instance shown this being lug I). The remainder of pivot pin D is preferably smooth and, as will be seen, this pin passes through lugs (L and Z1, and enlargements o" of guard arm b2 so as to constitute a pivot for the latter. Pivot pin D also has an extension (l beyond lug b, which is shown as slightly reduced in diameter for the reception of coiled spring E. Oneend c of this coiled spring is looped over guard arm b2, while the other end c engages the frame or strap A, so as to hold the guard in its advanced or gripping position.

It will be observed by reference to Fig. 4, and also Figs. 9. and 3, that the cylindrical structure comprising the mounting is very compact and is located or displaced off from the center line X-Y of the lenses,

thus permitting it to be placed farther from the center of the bridge. The mount ing also is set into the frame or strap A so as to gain still more in this direction, thus effecting an important decrease in the pupilary distance of the eyeglasses and still retaining the strength of the structure. Moreover, by the const-ruct-ion and arrangement of the parts of the mounting itself, a highly efcient and easily assembled guard mounting is produced. The guard arm is placed in position and pivot pin D is then inserted and screwed down through the lugs, the extension cl projecting below. rllhe coiled spring' E is slipped over this extension, and its ends readily placed, when the structure is completed.

Thile I have described, in accordance with the patent statutes, a specific embodiment of my invention what I now believe to be the best form thereof, it will be understood that changes in details of construction may be made without departing from the spirit of the invention, and such changes I contemplate as within the scope of the appended claims.

IVhat I claim as new, and desire to secure by Letters Patent of the United States, is-

l. A guard mounting for eyeglasses comprising a frame for attachment of a lens, perforated alined cylindrical lugs set into said frame at the inner curve thereof, andv a spring-pressed guard arm pivotally mounted between said lugs.

2. A guard mounting for eyeglasses comprising a. frame for attachment of a lens, a bridge extending from said frame and having a perforated cylindrical enlargement adjacent thereto, a perforated cylindrical lug on said frame in alinement with said bridge perforation, a pivot pin passing through said perforations and having an extension therebeyond, a guard arm pivotally mounted on said pin between said lug and bridge, and a spring for said guard arm mounted on said extension.

3. A guard mounting for eyeglasses comprising a frame for attachment of a lens, a bridge extending from said frame and provided with a screw threaded perforation adjacent thereto, a perforated lug on said frame in alinement` with said bridge perforation, a pivot pin passing through said perforations and formed with a threaded portion to engage the threads of the bridge perforation and also having an extension beyond said bridge, a guard arm pivotally mounted on said pin between said lug and bridge, and a, spring for said guard arm mounted on said extension.

4. A guard mounting for eyeglasses comprising a frame for attachment of a lens, a bridge extending from said frame and perforation adjacent thereto, a perforated .lug set into said frame and having a perforation in alinement with said bridge perforation, a pivot pin passing through said perforations and having an extension therebeyond, a guard arm pivotally mounted on said pin between said lug and bridge, and a spring coiled upon said extension and engaging both said frame and guard arm.

5. An eyeglass structure comprising a strap, a bridge extending therefrom and having a threaded perforation adjacent thereto, a lug set into said strap above said bridge and having a perforation in aline ment with said bridge perforation, a pivot pin passing through said perforations and having a threaded portion to engage the threads of said bridge perforation and also having an extension therebeyond, a guard arm having a perforated enlargement in alinement with said lug and mounted upon ,said pin between said lug and bridge, and a spring for said guard arm mounted on said extension.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

RAY o. KINGSLEY.

lVitnesses r C. A. GILLETTE, A. M. CLARKE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Yatents, Washington, D. C. 

